(1) Mr. Brown has helped a lot of students who struggled with math.
(2) Mr. Brown has helped a lot of students who have struggled with math.
What is the difference in meaning between "struggled" and "have struggled"? Please help me. Thank you very much.
struggled : Mr. Brown has helped a lot of students who had a struggle with math (at some point in their lives, but not anymore). have struggled : Mr.
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struggled: Mr. Brown has helped a lot of students who had a struggle with math (at some point in their lives, but not anymore).
have struggled: Mr. Brown has helped a lot of students who have a history of struggling with math (over time, includi